/// Sends an acknowledgement as defined in XEP-0198.
void QXmppStream::sendAcknowledgement()
{
if (!d->streamManagementEnabled)
return;
// prepare packet
QByteArray data;
QXmlStreamWriter xmlStream(&data);
QXmppStreamManagementAck ack(d->lastIncomingSequenceNumber);
ack.toXml(&xmlStream);
// send packet
sendData(data);
}
void ICQTransfer::process()
{
unsigned int /*i, */startTime;
hTimer = NULL;
if (current >= count) return;
startTime = GetTickCount();
while (fileProgress < fileSize && GetTickCount() < startTime+100) sendPacket0x06();
ack(ACKRESULT_DATA);
if (fileProgress < fileSize) hTimer = SetTimer(NULL, 0, 1, (TIMERPROC)transferTimerProc);
else if (current < count-1) sendPacket0x02();
}
void
cwd(const char *path)
{
if (chdir(path) < 0)
perror_reply(550, path);
else {
show_chdir_messages(250);
ack("CWD");
if (getcwd(cached_path, MAXPATHLEN) == NULL) {
discover_path(cached_path, path);
}
}
}
void QSocketSession::handshake(bool opposite)
{
if (MESSAGES) qDebug("Handshaking... (isOpen()=%d)", isOpen());
ack();
if (!waitForAck(1000) || !isOpen())
{ qWarning("*** ERROR: Handshake failed: Didn't receive ack. Closing link.");
close();
return;
}
if (MESSAGES) qDebug("Got ack!");
theIsMaster = opposite;
findByteOrder();
}
long ack(long n) {
if (acks[n].next != 0) return acks[n].next;
if (n % 2 == 0) {
acks[n].next = n / 2;
} else {
acks[n].next = 3 * n + 1;
}
ack(acks[n].next);
acks[n].length = acks[acks[n].next].length + 1;
return acks[n].next;
}
void ICQTransfer::resume(int action, const char *newName)
{
switch (action)
{
case FILERESUME_OVERWRITE:
T("[ ] overwrite existing file\n");
fileProgress = 0;
break;
case FILERESUME_RESUME:
T("[ ] file resume\n");
break;
case FILERESUME_RENAME:
T("[ ] rename file\n");
delete [] fileName;
fileName = new char[mir_strlen(newName) + 1];
mir_strcpy(fileName, newName);
files[current] = fileName;
openFile();
fileProgress = 0;
break;
case FILERESUME_SKIP:
T("[ ] skip file\n");
fileProgress = fileSize;
break;
}
totalProgress += fileProgress;
sendPacket0x03();
ack(ACKRESULT_NEXTFILE);
if (fileProgress) ack(ACKRESULT_DATA);
}
void Vehicle::SendFarsightPacket(Player * player, bool enabled)
{
if (enabled)
{
player->SetFarsightTarget(GetGUID());
WorldPacket ack(0x49D, 0);
if (player->GetSession() != NULL)
player->GetSession()->SendPacket(&ack);
}
else
{
player->SetFarsightTarget(0);
player->SetCharmedUnitGUID( 0 );
}
}
int fping_monitor(int sfd)
{
int err = 0;
if (sfd < 0)
return sfd;
/* try to ping existing socket */
if (ack(sfd, 20) != 0)
err = -1;
/* check the reply */
if (!err && wait_reply(sfd, 20) != 0)
err = -1;
return err;
}
int main(int argc, char *argv[]) {
if(argc!=3){
printf("%s%s",argv[0],": m n\n\twhere n and m are integers\n");
return 0;
}
int m = atoi(argv[1]);
int n = atoi(argv[2]);
printf("ack(%d,%d): ",m,n);
clock_t start=clock();
int back=ack(m,n);
clock_t end=clock();
double passed = end - start;
passed /= ((double)CLOCKS_PER_SEC);
printf("%d (%e seconds)\n", back, passed);
return(0);
}
/**
* In phase2 it advances the internal counter to move to the next tick,
* and when all ticks for this TickManager are done, to move to the next
* TickManager.
*/
void Clock::reinitPhase2( ProcInfo* info )
{
info->currTime = 0.0;
if ( Shell::isSingleThreaded() || info->threadIndexInGroup == 1 ) {
if ( tickPtr_.size() == 0 ||
tickPtr_[ currTickPtr_ ].mgr()->reinitPhase2( info ) ) {
++currTickPtr_;
if ( currTickPtr_ >= tickPtr_.size() ) {
Id clockId( 1 );
ack()->send( clockId.eref(), info->threadIndexInGroup,
info->nodeIndexInGroup, OkStatus );
procState_ = TurnOffReinit;
++countReinit2_;
}
}
}
}
// In phase 2 we need to do the updates to the Clock object, especially
// sorting the TickPtrs. This also is when we find out if the simulation
// is finished.
// Note that this function happens when lots of other threads are doing
// things. So it cannot touch any fields which might affect other threads.
void Clock::advancePhase2( ProcInfo *p )
{
if ( Shell::isSingleThreaded() || p->threadIndexInGroup == 1 ) {
tickPtr_[0].mgr()->advancePhase2( p );
if ( tickPtr_.size() > 1 )
sort( tickPtr_.begin(), tickPtr_.end() );
currentTime_ = tickPtr_[0].mgr()->getNextTime() -
tickPtr_[0].mgr()->getDt();
if ( currentTime_ > endTime_ ) {
Id clockId( 1 );
procState_ = StopOnly;
finished()->send( clockId.eref(), p->threadIndexInGroup );
ack()->send( clockId.eref(), p->threadIndexInGroup,
p->nodeIndexInGroup, OkStatus );
}
++countAdvance2_;
}
}
bool Vantage::Connect()
{
int connectrc=0;
char errorMsg[MAXRBUF];
DEBUGF(INDI::Logger::DBG_DEBUG, "Vantage connecting to %s", PortT[0].text);
if ( (connectrc = tty_connect(PortT[0].text, atoi(IUFindOnSwitch(&BaudRateSP)->name), 8, 0, 1, &PortFD)) != TTY_OK)
{
tty_error_msg(connectrc, errorMsg, MAXRBUF);
DEBUGF(INDI::Logger::DBG_ERROR,"Failed to connect to port %s @ baud %d. Error: %s", PortT[0].text,atoi(IUFindOnSwitch(&BaudRateSP)->name), errorMsg);
return false;
}
DEBUGF(INDI::Logger::DBG_DEBUG, "Port FD %d",PortFD);
return ack();
}
/* For the following functions it should not be nessecary to reimplement them as the contain the basic
* message handling, timeouts and state transitions.
*/
void do_on_ack()
{
if ( _state != WAIT_FOR_ACK )
{
_state = ERROR;
std::stringstream ss;
ss << "Unexpected ACK received while in state " << stateNames[_state];
error(ss.str());
return;
}
_timer.cancel();
_state = WAIT_FOR_START;
ack();
_timer.expires_from_now(boost::posix_time::seconds(1500));
_timer.async_wait(boost::bind(&fullcircle::Client::do_on_timeout, this, _1));
}
uchar read_data(uchar add)
{
uchar b;
init();
start();
write(0xa0);
ack;
write(add);
ack();
start();
write(0xa1);
ack;
read();
b=read();
noack;
stop;
return b;
}
void rel_recvpkt (rel_t *r, packet_t *pkt, size_t n)
{
if (ntohs(pkt->len) < 12 || ntohs(pkt->len) > 1016) {
fprintf(stderr, "Wrong length pkt\n");
return;
}
if ( (((int) n) > ntohs(pkt->len)) || (((int) n) < ntohs(pkt->len)) ) {
fprintf(stderr, "size mismatch\n");
return;
}
if (ntohl(pkt->ackno) < 1 || ntohl(pkt->ackno) > r->seqOut) {
fprintf(stderr, "Wrong ackno\n");
return;
}
if ((int) n < 12 || (int) n > 1016) {
fprintf(stderr, "Wrong length input\n");
return;
}
uint16_t oldCheck = pkt->cksum;
int len = ntohs(pkt->len);
numBitsReceivedBetweenTimers = numBitsReceivedBetweenTimers + len;
pkt->cksum = 0;
pkt->cksum = 0;
pkt->cksum = 0;
pkt->cksum = 0;
uint16_t realCheck = cksum(pkt, len);
if (realCheck != oldCheck) {
fprintf(stderr, "wrong checksum for packet: length %d, ackno %d, seqno %d\n", len, ntohl(pkt->ackno), ntohl(pkt->seqno));
return;
}
if(len == 12){
processAck2 (r, pkt);
}
else if(len >= 16 && len <= 1016 && ntohl(pkt->seqno) >= r->seqIn && sizeOfQueue(r->receiverBuff) < r->recvWindows){
processData(r, pkt, len);
}
else{
ack(r, r->seqIn);
}
return;
}
void reader()
{
while(1){
ManagedString incoming = uBit.serial.readUntil(";") + ";";
ManagedString id = incoming.substring(0,3);
if(id == "set"){
uBit.serial.send("ack;");
set(incoming);
} else if(id == "ack"){
uBit.serial.send("ack;");
ack(incoming);
} else if(id == "stp"){
uBit.serial.send("ack;");
stp();
}
}
}
/**
* The client is requesting an offer.
*
* @returns true.
*
* @param pDhcpMsg The message.
* @param cb The message size.
*/
bool NetworkManager::handleDhcpReqRequest(PCRTNETBOOTP pDhcpMsg, size_t cb)
{
ConfigurationManager *confManager = ConfigurationManager::getConfigurationManager();
/* 1. find client */
Client client = confManager->getClientByDhcpPacket(pDhcpMsg, cb);
/* 2. find bound lease */
Lease l = client.lease();
if (l != Lease::NullLease)
{
if (l.isExpired())
{
/* send client to INIT state */
Client c(client);
nak(client, pDhcpMsg->bp_xid);
confManager->expireLease4Client(c);
return true;
}
else {
/* XXX: Validate request */
RawOption opt;
RT_ZERO(opt);
Client c(client);
int rc = confManager->commitLease4Client(c);
AssertRCReturn(rc, false);
rc = ConfigurationManager::extractRequestList(pDhcpMsg, cb, opt);
AssertRCReturn(rc, false);
ack(client, pDhcpMsg->bp_xid, opt.au8RawOpt, opt.cbRawOpt);
}
}
else
{
nak(client, pDhcpMsg->bp_xid);
}
return true;
}
static char *ping_monitor_version(char *devname)
{
int sfd = connect_monitor(devname);
struct metadata_update msg;
int err = 0;
if (sfd < 0)
return NULL;
if (ack(sfd, 20) != 0)
err = -1;
if (!err && receive_message(sfd, &msg, 20) != 0)
err = -1;
close(sfd);
if (err || !msg.len || !msg.buf)
return NULL;
return msg.buf;
}
void
Client::Disconnect()
{
std::cout << "===> Disconnecting the client from socket" << std::endl;
if (!fIsConnected) return;
try {
SendMessage(SocketMessage(REMOVE_CLIENT, fClientId), -1);
} catch (Exception& e) {
e.Dump();
}
try {
SocketMessage ack(FetchMessage());
if (ack.GetKey()==THIS_CLIENT_DELETED or ack.GetKey()==OTHER_CLIENT_DELETED) {
fIsConnected = false;
}
} catch (Exception& e) {
if (e.ErrorNumber()!=11000) // client has been disconnected
e.Dump();
else return;
}
}
void interpret_packet(void) {
int size = rx(); // ignore. protocol is self-terminating.
(void)size;
int command = rx();
switch(command & 0x0F) {
default:
case 0: ack(); break;
case 1: npush(); break;
case 2: npop(); break;
case 3: jsr(); break;
case 4: lda(); break;
case 5: ldf(); break;
case 7: intr(); break;
case 8: nafetch(); break;
case 9: nffetch(); break;
case 10: nastore(); break;
case 11: nfstore(); break;
}
infof("\n");
}
void queue::ack(const entry_id id)
{
auto found = m_wait_ack.find(id.chunk);
if (found == m_wait_ack.end()) {
LOG_ERROR("ack for chunk %d (pos %d) which is not in waiting list", id.chunk, id.pos);
return;
}
auto chunk = found->second;
chunk->ack(id.pos);
if (chunk->meta().acked() == chunk->meta().low_mark()) {
// Real end of the chunk's lifespan, all popped entries are acked
m_wait_ack.erase(found);
chunk->add(&m_statistics.chunks_popped);
// Chunk would be uncomplete here only if its the only chunk in the queue
// (filled partially and serving both as a push and a pop/ack target)
if (chunk->meta().complete()) {
chunk->remove();
LOG_INFO("chunk %d complete", id.chunk);
}
// Set chunk_id_ack to the lowest active chunk
//NOTE: its important to have m_chunks and m_wait_ack both sorted
m_state.chunk_id_ack = m_state.chunk_id_push;
if (!m_chunks.empty()) {
m_state.chunk_id_ack = std::min(m_state.chunk_id_ack, m_chunks.begin()->first);
}
if (!m_wait_ack.empty()) {
m_state.chunk_id_ack = std::min(m_state.chunk_id_ack, m_wait_ack.begin()->first);
}
write_state();
}
++m_statistics.ack_count;
}
void TradeHandler::ValidateAndAcknowledgeTrade(
AcceptCommit accept_commit)
{
uint160 accept_commit_hash = accept_commit.GetHash160();
uint160 commit_hash = accept_commit.order_commit_hash;
OrderCommit commit = msgdata[commit_hash]["commit"];
AcceptOrder accept;
accept = msgdata[commit.accept_order_hash]["accept_order"];
Order order = msgdata[accept.order_hash]["order"];
Currency currency = flexnode.currencies[order.currency];
vch_t payer_data, payee_data;
if (order.side == ASK)
{
payer_data = order.auxiliary_data;
payee_data = accept.auxiliary_data;
}
else
{
payee_data = order.auxiliary_data;
payer_data = accept.auxiliary_data;
}
if (!currency.ValidateProposedFiatTransaction(accept_commit_hash,
payer_data,
payee_data,
order.size))
{
log_ << "Could not validate fiat transaction!\n";
return;
}
tradedata[accept_commit_hash]["ttp_validated"] = true;
ThirdPartyTransactionAcknowledgement ack(accept_commit_hash);
ack.Sign();
uint160 ack_hash = ack.GetHash160();
tradedata[accept_commit_hash]["acknowledgement"] = ack_hash;
BroadcastMessage(ack);
}
/*
* 4.3.5 DHCPINFORM message
*
* The server responds to a DHCPINFORM message by sending a DHCPACK
* message directly to the address given in the 'ciaddr' field of the
* DHCPINFORM message. The server MUST NOT send a lease expiration time
* to the client and SHOULD NOT fill in 'yiaddr'. The server includes
* other parameters in the DHCPACK message as defined in section 4.3.1.
*/
DhcpServerMessage *DHCPD::doInform(DhcpClientMessage &req)
{
if (req.ciaddr().u == 0)
return NULL;
const OptParameterRequest params(req);
if (!params.present())
return NULL;
optmap_t info(m_pConfig->getOptions(params, req.clientId()));
if (info.empty())
return NULL;
std::unique_ptr<DhcpServerMessage> ack (
createMessage(RTNET_DHCP_MT_ACK, req)
);
ack->addOptions(info);
ack->maybeUnicast(req);
return ack.release();
}
int main() {
long i, g_number;
unsigned long g_sequence;
acks[1].next = 1;
g_sequence = 0;
for (i = 2; i < 1000000; i++) {
ack(i);
if (acks[i].length > g_sequence) {
g_sequence = acks[i].length;
g_number = i;
} else if (acks[i].length == g_sequence) {
if (i < g_number) g_number = i;
}
}
std::cout << g_number << std::endl;
return 0;
}
DhcpServerMessage *DHCPD::doRequest(DhcpClientMessage &req)
{
OptRequestedAddress reqAddr(req);
if (req.ciaddr().u != 0 && reqAddr.present() && reqAddr.value().u != req.ciaddr().u)
{
std::unique_ptr<DhcpServerMessage> nak (
createMessage(RTNET_DHCP_MT_NAC, req)
);
nak->addOption(OptMessage("Requested address does not match ciaddr"));
return nak.release();
}
Binding *b = m_db.allocateBinding(req);
if (b == NULL)
{
return createMessage(RTNET_DHCP_MT_NAC, req);
}
std::unique_ptr<DhcpServerMessage> ack (
createMessage(RTNET_DHCP_MT_ACK, req)
);
b->setState(Binding::ACKED);
saveLeases();
ack->setYiaddr(b->addr());
ack->addOption(OptLeaseTime(b->leaseTime()));
OptParameterRequest optlist(req);
ack->addOptions(m_pConfig->getOptions(optlist, req.clientId()));
ack->addOption(OptMessage("Ok, ok, here it is"));
ack->maybeUnicast(req);
return ack.release();
}
int InputData(int net)
{
int resource = 0;
if ( getrequestheader(net) < 0 ) /* Get HTTP request */
return -1;
output(net);
if ( (resource = review()) < 0 ) /* Check whether resource exists and updates the status code */
{
output(net);
return 1;
}
printf("Status is: %d\n",status);
/*Outputs HTTP response headers */
/* Service the HTTP request */
if ( status == 200 )
{
if ( ack(net, resource) ) /* returns the resource */
error("Error returning the resource");
}
if ( resource > 0 )
if ( close(resource) < 0 )
{
error("Resource could not be closed");
}
return 0;
}
Stanza JingleStanza::ack(IJingle::CommandRespond ARespond) const
{
Stanza ack("iq");
ack.setId(id());
ack.setFrom(to());
ack.setTo(from());
if (ARespond==IJingle::Acknowledge)
ack.setType("result");
else
{
ack.setType("error");
QDomElement error=ack.addElement("error");
switch (ARespond)
{
case IJingle::ServiceUnavailable:
error.setAttribute("type", "cancel");
error.appendChild(ack.createElement("service-unavailable", "urn:ietf:params:xml:ns:xmpp-stanzas"));
break;
case IJingle::Redirect:
error.setAttribute("type", "modify");
error.appendChild(ack.createElement("redirect", "urn:ietf:params:xml:ns:xmpp-stanzas"));
break;
case IJingle::ResourceConstraint:
error.setAttribute("type", "wait");
error.appendChild(ack.createElement("resource-constraint", "urn:ietf:params:xml:ns:xmpp-stanzas"));
break;
case IJingle::BadRequest:
error.setAttribute("type", "cancel");
error.appendChild(ack.createElement("bad-request", "urn:ietf:params:xml:ns:xmpp-stanzas"));
break;
default:
break;
}
}
return ack;
}
boolean Nextion::updateProgressBar(int x, int y, int maxWidth, int maxHeight, int value, int emptyPictureID, int fullPictureID, int orientation){
int w1 = 0;
int h1 = 0;
int w2 = 0;
int h2 = 0;
int offset1 = 0;
int offset2 = 0;
if(orientation == 0){ // horizontal
value = map(value, 0, 100, 0, maxWidth);
w1 = value;
h1 = maxHeight;
w2 = maxWidth - value;
h2 = maxHeight;
offset1 = x + value;
offset2 = y;
}else{ // vertical
value = map(value, 0, 100, 0, maxHeight);
offset2 = y;
y = y + maxHeight - value;
w1 = maxWidth;
h1 = value;
w2 = maxWidth;
h2 = maxHeight - value;
offset1 = x;
}//end if
String wipe = "picq " + String(x) + "," + String(y) + "," + String(w1) + "," + String(h1) + "," + String(fullPictureID);
sendCommand(wipe.c_str());
wipe = "picq " + String(offset1) + "," + String(offset2) + "," + String(w2) + "," + String(h2) + "," + String(emptyPictureID);
sendCommand(wipe.c_str());
return ack();
}//end updateProgressBar
void processData (rel_t *r, packet_t *pkt, int length){
if ( r->beginTime.tv_sec == 0 && r->beginTime.tv_usec == 0 ) {
gettimeofday(&r->beginTime, NULL);
}
if (ntohl(pkt->seqno) >= 1) {
packetQueue* newPkt = new_packet();
memcpy(newPkt->packet, pkt, length);
if (ntohl(pkt->seqno) == r->seqIn) {
r->seqIn = r->seqIn + 1;
}
ack(r, r->seqIn);
processAck(r, (struct ack_packet*) pkt);
orderlyInsert(&(r->receiverBuff), newPkt);
if (length == 16) {
fprintf(stderr, "GET EOF\n");
r->pairEOFed = 1;
}
rel_output(r);
}
else{
fprintf(stderr, " wrong seqno %d \n", ntohl(pkt->seqno));
return;
}
}
void Vehicle::EjectPassengerFromSeat( uint32 seatid ){
if( !seats[ seatid ]->Usable() )
return;
if( !seats[ seatid ]->HasPassenger() )
return;
Unit *passenger = owner->GetMapMgrUnit( seats[ seatid ]->GetPassengerGUID() );
if( passenger == NULL )
return;
// set moveflags
// set movement info
// remove charmed by if passenger was controller
if( seats[ seatid ]->Controller() ){
passenger->SetCharmedUnitGUID( 0 );
owner->SetCharmedByGUID( 0 );
if( passenger->IsPlayer() ){
owner->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_PLAYER_CONTROLLED_CREATURE | UNIT_FLAG_PVP_ATTACKABLE );
WorldPacket ack( SMSG_CLIENT_CONTROL_UPDATE, 16 );
ack << owner->GetNewGUID();
ack << uint8( 0 );
passenger->SendPacket(&ack);
// send null spells if needed
static_cast< Player* >( passenger )->SendEmptyPetSpellList();
}
}
if( passenger->IsPlayer() )
static_cast< Player* >( passenger )->SetFarsightTarget( 0 );
// if we are on a flying vehicle, add a parachute!
if( owner->HasAuraWithName( SPELL_AURA_ENABLE_FLIGHT ) || owner->HasAuraWithName( SPELL_AURA_ENABLE_FLIGHT2 ) )
passenger->CastSpell( passenger, 45472, false );
// re-add spellclick flag if needed
// despawn vehicle if it was spawned by spell?
LocationVector landposition( owner->GetPosition() );
passenger->SendHopOffVehicle( owner, landposition );
passenger->SetPosition( landposition );
passenger->Unroot();
seats[ seatid ]->RemovePassenger();
passenger->SetCurrentVehicle( NULL );
passenger->RemoveFlag( UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE | UNIT_FLAG_NOT_ATTACKABLE_2 );
passengercount--;
freeseats++;
if( HasEmptySeat() ){
if( owner->IsPlayer() )
owner->SetFlag( UNIT_NPC_FLAGS, UNIT_NPC_FLAG_PLAYER_VEHICLE );
else
owner->SetFlag( UNIT_NPC_FLAGS, UNIT_NPC_FLAG_SPELLCLICK );
}
if( passenger->IsPlayer() )
static_cast< Player* >( passenger )->SpawnActivePet();
if( passenger->IsCreature() ){
Creature *c = static_cast< Creature* >( passenger );
if( c->GetScript() != NULL ){
c->GetScript()->OnExitVehicle();
}
}
if( owner->IsCreature() ){
Creature *c = static_cast< Creature* >( owner );
if( c->GetScript() != NULL ){
if( passengercount == 0 )
c->GetScript()->OnLastPassengerLeft( passenger );
}else{
// The passenger summoned the vehicle, and we have no script to remove it, so we remove it here
if( ( passengercount == 0 ) && ( c->GetSummonedByGUID() == passenger->GetGUID() ) )
c->Despawn( 1 * 1000, 0 );
}
}
}